Question

quiz
question 1 of 5
carbon dioxide is ______.
choose one option
a a toxic gas produced by landfills
b produced by plants during photosynthesis
c needed by industry to power generators
d a greenhouse gas that traps heat in the atmosphere

Explanation:

• Option A: Landfills produce methane mainly, not CO₂ as a toxic gas in this context. CO₂ is not highly toxic in typical scenarios.
• Option B: Plants take in CO₂ during photosynthesis and produce oxygen, not the other way around.
• Option C: Industries use fuels like coal, gas, etc., to power generators, not CO₂.
• Option D: Carbon dioxide is a greenhouse gas that absorbs and re - emits infrared radiation, thus trapping heat in the atmosphere.

Answer:

D. a greenhouse gas that traps heat in the atmosphere